SSL Cert Question for ISPConfig Access

I posed this question some time ago and Till did respond, however I have been out of my office for months now and can't locate his response in my email client..

Anyhow...

My server is running Ubuntu 7.10 and ISPConfig.

When I try to access ISPConfig using the URL: https://giganetwireless.net:81/
The browser just works and works never going to the ISPConfig login screen.
This is a SSL certificate issue isn't it?

I have logged into ISPConfig from the server Desktop itself and have accessed the primary domain giganetwireless.net, then I navigated to SSL then I entered the company information then I selected 'Create Certificate' then chose 'Save'.

The server generated a CSR and a Certificate too, however I want to buy a new NetSol SSL Certificate to install onto this server, can someone direct me to the steps to be taken to complete this task.

I assume I must submit the CSR to NetSol and they will in-turn generate a SSL Certificate to be installed afterwards...

What's weird is one my NIX servers has a desktop on it and I can access either of the two servers ISPConfig VIA web-browser, yet on MS servers and PC's I am unable to access ISPConfig login VIA web-browser?

This means it's not a firewall problem because you're at least getting a connection (although it was interrupted).
I think you should recreate the SSL certificate, but this time please accept all default values. Don't enter custom data.